Here the Blog is about “How Is Ultimate Tic-tac-toe Played?”

Play Ultimate Tic Tac Toe

If a move is played so that it is to win a local board by the rules of normal tic-tac-toe, then the entire local board is marked as a victory for the player in the global board. Even though every move must be played in a local board, equivalent to a normal tic-tac-toe board, each move must take into account the global board in several ways: This might make moves that may be considered bad in normal tic-tac-toe viable, since the opponent is sent to another local board, and may be unable to immediately respond to them. Winning the game: Due to the rules of ultimate tic-tac-toe, the global board is never directly affected.

Ultimate Tic-tac-toe

Ultimate tic-tac-toe (also known as ten-tac-toe, super tic-tac-toe, strategic tic-tac-toe, meta tic-tac-toe, tic-tac-tic-tac-toe-toe, or (tic-tac-toe)2) is a board game that consists of nine tic-tac-toe boards set in a Players take turns playing tic-tac-toe on the smaller boards until one of them wins on the larger board. The strategy of this game is conceptually more complicated than standard tic-tac-toe, and it has proven to be tougher for computers.


Each of the smaller 3 3 tic-tac-toe boards is known as a local board, while the bigger 3 3 board is known as the global board.

The game begins with X playing anywhere in any of the 81 unoccupied spots. This action “transports” its opponent to a nearby location. If X placed a bet in the top right square of their local board, then O must place a bet in the top right square of the global board. Each move sends X to a different local board, allowing O to play in any of the nine available positions on that local board.

When a move is made to win a local board using standard tic-tac-toe rules, the entire local board is registered as a win for the player on the global board.

No more moves may be played on a local board once a player has won it or it has been filled. If a player is assigned to one of these boards, he or she is free to play on any other board.

If there are still empty spaces in another version of the game, players can continue playing in already won boxes. This prolongs the game and allows for more strategic manoeuvres. It is up to the participants to decide which rule they will obey. This set of rules for the game admits a winning strategy for the first player to move, implying that the first person to move can always win given faultless performance, according to research published in 2020.

The game is over when either a player wins the global board or there are no more permitted movements, in which case the game is a tie.


Because there is no clear technique to playing Ultimate tic-tac-toe, it is substantially more difficult than most other varieties of tic-tac-toe. This is due to the game’s intricate branching system. Even though each move must be played on a local board, which is identical to a standard tic-tac-toe board, each move must consider the global board in multiple ways:

  • Predicting the opponent’s future move: Every move made on a local board determines where the opponent’s next move will be made. Because the opponent is transported to another local board and may not be able to respond immediately, moves that would be considered terrible in standard tic-tac-toe may be viable. As a result, instead of focusing just on the local board, players are required to consider the wider game board.
  • Visualizing the game tree: Visualizing the game tree’s future branches is more challenging than playing tic-tac-toe on a single board. Reading ahead—predicting future moves—follows a much less linear path because each step impacts the next. Future board positions are no longer interchangeable, with each move resulting in drastically different future possibilities. This makes it difficult to envision the game tree, potentially leaving many alternative paths unexplored.
  • Winning the game: The global board is never directly influenced by the rules of ultimate tic-tac-toe. It is governed solely by decisions made by local boards. This means that each local move is made to win the global board rather than the local board. Local victories are meaningless unless they can be exploited to win the global board; in fact, it may be smarter to give up a local board to your opponent to win a more significant local board. Humans find it more difficult to understand the relative importance and significance of plays as a result of this added degree of complexity, making it more difficult to play successfully.

Youtube Reference

MindYourDecisions: Ultimate Tic-Tac-Toe: The Rules

Board Simple: How to Play – Ultimate Tic-Tac-Toe

Commissar BRO: Ultimate Tic-Tac-Toe Gameplay


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